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Table 3 Conditional Logistic Regression model for matched cases and controls, Univariate Analysis, The odds ratio (OR), the 95% confidence index (CI 95%) and the p value are displayed

From: Decreased relative risk of pneumococcal pneumonia during the last decade, a nested case-control study

Variable OR CI 95% p value
CAP1 versus CAP2 Períod 1.23 0.30 to 1.80 0.006
Sex 0.62 −0.22 to 1.47 0.148
Nursing Home −1.93 −4.00 to 0.14 0.067
PSI = 5 0.88 −0.01 to 1.77 0.053
CURB 65 0.26 − 0.11 to 0.64 0.168
Positive blood cultures 2.80 1.26 to 4.35 < 0.001
Positive sputum 2.44 0.20 to 4.67 0.033
Admitted to general ward 1.63 0.60 to 2.66 0.002
Outpatients −1.85 −3.03 to −0.68 0.002
Admitted to the ICU −0.19 −1.60 to 1.23 0.800
Decesed 0.89 −0.20 to 1.99 0.110
Pneumococcal vaccination −0.25 −1.46 to 0.95 0.680